On 01/07/2016 05:28 AM, Nikhil Utane wrote: > So my question is, how to pass the virtual IP to my UDPSend OCF agent so > that it can then bind to the vip? This will ensure that all messages > initiated by my UDPSend goes from vip.
Hi, I don't know how ping -I does it (what system call it uses) but I think you'll have to implement that if you want your program to source connection from a particular virtual IP. As far as I know, the way this is usually done these days is by creating routes. Something like: ip route change 192.168.14.0/24 dev eth0 src 192.168.14.4 > Out of curiosity, where is this virtual IP stored in the kernel? > I expected to see a secondary interface ( for e.g. eth0:1) with the vip > but it isn't there. Well, in the old days we used to have a "virtual interface" (eth0:1, eth0:2 etc) but the proper modern way is to use "virtual addresses" within a single interface. The caveat is that you need to use the ip command to show these virtual addresses (ifconfig is not aware of them): ip addr show You'll see there the notion of a primary IP and secondaries. The system will initiate connection from the primary by default (unless you specify a route like the one above). HTH, Jorge _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
